Toshiba FT-8509, Service Manual

Page: 24 / 53

24
Unit [V] Unit [V]
Ref No. PIN STBY TALK NOTE Ref No. PIN STBY TALK NOTE
1 6.0 6.0 36 5.2 5.2
2 0.0 0.0 GND 37 5.2 5.2
3 1.2 1.2 38 0.0/5.2 0.0/5.2
Depend on VOL SW
4 3.0 3.0 39 5.2/0.0 5.2/0.0
Depend on VOL SW
IC8
5 6.0 6.0 40 0.0/5.2 0.0/5.2 TONE/PULSE
1 5.2 5.2 41 0.0 0.0
2 5.2 5.2 42 5.2 5.2 IC9
3 0.0 0.0 GND 43 0.0 0.0
1 0.0 0.0 44 0.0 0.0
2 5.2 5.2 45 0.0 5.2 TX MUTE
3 0.0 0.0 GND 46 0.0 5.2 RX MUTE
4 0.0 0.0 GND 47 0.0 0.0
5 0.0-0.5.0 0.0-0.5.0 SINE WAVE
IC10
48 5.2 0.0
6 -0.4-5.0 -0.4-5.0 SINE WAVE E 0.2 0.2
7 5.2 5.2 C 4.5 4.5
8 0.0 0.0 GND
Q1
B 1.0 1.0
9 0.0 0.0 GND E 0.2 0.2
10 0.0 5.2 C 2.8 2.8
11 0.0-5.2 5.2
Q2
B 0.8 0.8
12 0.0-5.2 5.2 E 0.0 0.0
13 0.0-5.2 0.0 C 2.8 2.8
14 5.2 0.0
Q3
B 5.2 1.5
15 0.0 0.0 OPEN E 0.7 0.9
16 5.2 5.2 C 3.8 3.4
17 5.2 5.2
Q4
B 1.4 1.6
18 5.2 0.0 SQ E 0.0 0.0
19 0.0 0.0 GND C 2.0 2.0
20 0.0-5.2 0.0-5.2
Q5
B 5.2 1.5
21 5.2 5.2 E 0.0 0.0 GND
22 5.2 0.0 C 9.0 0.0
23 5.2 5.2
Q6
B 0.0 0.4
24 5.2 5.2 E 1.5 1.5
25 5.2 5.2 C 0.2 1.5
26 5.2 5.2
Q7
B 1.5 1.5
27 0.0 0.0 E 0.0 0.0 GND
28 0.0 0.0 C 0.0 0.0
29 0.0 0.0
Q8
B 0.4 0.4
30 0.0 0.0 E 6.6 6.6
31 0.0 0.0 C 9.0 9.0
32 5.2 5.2
Q9
B 6.0 6.0
33 5.2 5.2 E 0.0 0.0 GND
34 5.2 5.2 C 5.2 5.2
IC10
35 5.2 5.2
Q11
B 0.0 0.0